Intranight optical variability of BL Lacs, radio-quiet quasars and radio-loud quasars

dc.contributor.author	Stalin, C. S.
dc.contributor.author	Gupta, A. C.
dc.contributor.author	Gopal-Krishna
dc.contributor.author	Wiita, P. J.
dc.contributor.author	Sagar, R.
dc.date.accessioned	2009-07-29T10:31:27Z
dc.date.available	2009-07-29T10:31:27Z
dc.date.issued	2005
dc.identifier.uri	http://hdl.handle.net/123456789/198
dc.description.abstract	We report monitoring observations of 20 high- luminosity active galactic nuclei (AGN), 12 of which are radio-quiet quasars (RQQs). Intranight optical variability (INOV) was detected for 13 of the 20 objects, including 5RQQs. The variations are distinctly stronger and more frequent for blazers than for the other AGN classes. By combining these data with results obtained earlier in our programme, we have formed an enlarged sample consisting of 9 BL Lacs, 19 RQQs and 11 lobe-dominated radio-loud quasars (LDQs) argues against a direct link between INOV and radio loudness. We supplemented the present observations of 3 BL Lacs with additional data from the literature. In this extended sample of 12 well observed BL Lacs, stronger INOV in found for the EGRET detected subset.	en_US
dc.language.iso	en	en_US
dc.relation.ispartofseries	;mn356-607
dc.subject	Galaxies, Active- BL Lacertae, Photometry-Quasars	en_US
dc.title	Intranight optical variability of BL Lacs, radio-quiet quasars and radio-loud quasars	en_US
dc.type	Article	en_US